mirror of https://github.com/PentHertz/srsLTE.git
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#ifndef SRSRAN_PSS_NR_H
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#define SRSRAN_PSS_NR_H
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#include "srsran/config.h"
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#include "srsran/phy/common/phy_common_nr.h"
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#include <inttypes.h>
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/**
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* @brief NR PSS sequence length in frequency domain
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*/
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#define SRSRAN_PSS_NR_LEN 127
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/**
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* @brief NR PSS Symbol number
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*/
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#define SRSRAN_PSS_NR_SYMBOL_IDX 0
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/**
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* @brief Put NR PSS sequence in the SSB grid
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* @remark Described in TS 38.211 section 7.4.2.2 Primary synchronization signal
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* @param ssb_grid SSB resource grid
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* @param N_id_2 Physical cell ID 2
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* @param beta PSS power allocation
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* @return SRSLTE_SUCCESS if the parameters are valid, SRSLTE_ERROR code otherwise
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*/
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SRSRAN_API int srsran_pss_nr_put(cf_t ssb_grid[SRSRAN_SSB_NOF_RE], uint32_t N_id_2, float beta);
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/**
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* @brief Extracts the NR PSS Least Square Estimates (LSE) from the SSB grid
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* @param ssb_grid received SSB resource grid
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* @param N_id_2 Physical cell ID 2
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* @param lse Provides LSE pointer
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* @return SRSLTE_SUCCESS if the parameters are valid, SRSLTE_ERROR code otherwise
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*/
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SRSRAN_API int srsran_pss_nr_extract_lse(const cf_t* ssb_grid, uint32_t N_id_2, cf_t lse[SRSRAN_PSS_NR_LEN]);
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#endif // SRSRAN_PSS_NR_H
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